I need to leave a meeting in Barcelona 5/11/07 after 3PM and be at a wedding in North Carolina on 5/12/07. I am considering the following flight plan:

5/11/07 BCN --> LHR Brit Air 7072 leave BCN 4:40PM arrive LHR 5:55PM
LHR --> JFK AA 141 leave LHR 8:05PM arrive JFK 10:50P
JFK --> RDU AA 4706 leave JFK 8:15AM arrive RDU 10AM


My question is whether a 2 hr layover in Heathrow connecting is long enough? Since I am coming from an EU country, so I can avoid the wait at customs. As I would be changing airlines, however, I would need to gather my checked luggage and check-in for my AA flight to the US. Is this too risky a flight plan? I have few other options.

A similar flight plan is available taking Air France from BCN --> CDG with same timeframe. Any advice on which airport is easier to navigate for connecting flights?